agged is a social discovery website based in San Francisco, California, founded in 2004. It allows members to browse the profiles of any other members,[2] and share tags and virtual gifts. Tagged claims it has 300 million members.[3] As of September 2011, Quantcast estimates Tagged monthly unique users at 5.9 million in the United States, and 18.6 million globally.[4] Michael Arrington wrote in April 2011 that Tagged is most notable for the ability to grow profitably during the era of Facebook.[5]